1. Introduction
The DZS Elec XL6009 is a high-performance DC-DC non-isolated boost (step-up) converter module. It utilizes a third-generation high-frequency switch technology, offering superior performance for various voltage regulation applications. This module is designed to convert a lower DC input voltage to a higher DC output voltage, making it suitable for a wide range of electronic projects and power supply solutions.
Typical applications include creating adjustable mobile power supplies, booster chargers, and general voltage stabilization where a higher voltage is required from a lower source.

Image 1.1: Overview of six DZS Elec XL6009 DC-DC Booster Converter Modules.
2. Product Features
- Adjustable Output: Provides a continuously adjustable output voltage from 5V to 35V.
- Wide Input Voltage Range: Accepts input voltages from 3V to 32V, with an optimal operating range of 5V to 32V.
- High Efficiency: Achieves a maximum conversion efficiency of 94%.
- High Switching Frequency: Operates at 400KHz, contributing to smaller ripple and compact size.
- High Current Capability: Supports a maximum input current of 4A.
- Integrated MOSFET: Equipped with a 4A high-efficiency MOSFET switch tube.
3. Specifications
| Parameter | Value |
|---|---|
| Module Type | Non-isolation Boost (BOOST) |
| Input Voltage | 3V-32V (Optimal: 5V-32V) |
| Output Voltage | 5V-35V (Adjustable, Output > Input) |
| Input Current | 4A (maximum) |
| No-Load Current | 18mA (increases with higher voltage) |
| Conversion Efficiency | Max 94% (decreases with larger voltage difference) |
| Switching Frequency | 400KHz |
| Output Ripple | 50mV (increases with higher voltage and current) |
| Load Regulation | +/-0.5% |
| Voltage Regulation | +/-0.5% |
| Working Temperature | -40 to +85 degrees Celsius |
| Dimensions (LxWxH) | 43mm x 21mm x 14mm |
4. Safety Information
- Input Voltage Limit: Ensure the input operating voltage does not exceed 32V. Exceeding this limit can cause permanent damage to the module.
- Polarity Check: Always verify that the positive (IN+) and negative (IN-) terminals of the input power source are connected correctly before applying power. Incorrect polarity can damage the module.
- Output Voltage Adjustment: When adjusting the output voltage, proceed cautiously. If the output voltage does not change or remains equal to the input voltage, disconnect power, rotate the potentiometer counter-clockwise several turns, and then reapply power to adjust.
- Heat Dissipation: For high current or large voltage difference applications, ensure adequate ventilation or consider additional heat sinking to prevent overheating.
- Electrical Safety: Handle the module with care, especially when powered. Avoid touching exposed components.
5. Setup and Installation
The XL6009 module features clearly labeled input and output terminals for straightforward connection.
- Identify Terminals: Locate the IN+ (Input Positive), IN- (Input Negative), OUT+ (Output Positive), and OUT- (Output Negative) pads on the module.
- Connect Input Power: Connect your DC power source (e.g., battery, power adapter) to the IN+ and IN- terminals. Ensure the input voltage is within the 3V-32V range.
- Connect Load: Connect your desired load (e.g., LED strip, motor, other electronic circuits) to the OUT+ and OUT- terminals.
- Initial Check: Before applying power, double-check all connections for correct polarity and secure contact.

Image 5.1: Connection points and voltage adjustment potentiometer on the XL6009 module.
6. Operation
The output voltage of the XL6009 module is adjustable using the onboard potentiometer (often labeled W503 or similar).
- Apply Input Power: Once connections are secure, apply power to the input terminals.
- Measure Output Voltage: Use a multimeter to measure the voltage across the OUT+ and OUT- terminals.
- Adjust Output Voltage: Carefully turn the small screw on the potentiometer using a small screwdriver.
- Turning clockwise will increase the output voltage.
- Turning counter-clockwise will decrease the output voltage.
- Monitor Output: Continuously monitor the output voltage with your multimeter while adjusting until the desired voltage is reached.
Note: The output voltage must always be higher than the input voltage for this boost converter to function correctly.

Image 6.1: Detailed view of the XL6009 module, showing the potentiometer for voltage adjustment.
7. Troubleshooting
- Output Voltage Does Not Change or Equals Input Voltage:
This is a common issue. The potentiometer may be at its minimum setting. Disconnect power, then rotate the potentiometer screw counter-clockwise for several (5-10) full turns. Reapply power and attempt to adjust the voltage again. The output voltage should now respond to adjustments.
- Module Not Functioning / No Output:
Verify that the input voltage is within the specified range (3V-32V). Check all wiring for correct polarity (IN+, IN-, OUT+, OUT-) and secure connections. Ensure the input power source is capable of supplying sufficient current.
- Module Overheating:
If the module becomes excessively hot, it may be operating near its maximum current limit or with a very large voltage difference between input and output. Reduce the load current, increase the input voltage (if possible), or provide additional cooling (e.g., a small heatsink or fan).
8. Package Contents
Each package typically includes:
- 6 x DZS Elec XL6009 DC-DC Booster Converter Modules

Image 8.1: Example of package contents, showing six XL6009 modules and packaging.





